package com.rome.hotel.data.controller;

import cn.hutool.json.JSONObject;
import com.alipay.api.AlipayApiException;
import com.alipay.api.AlipayClient;
import com.alipay.api.DefaultAlipayClient;
import com.alipay.api.internal.util.AlipaySignature;
import com.alipay.api.request.AlipayTradePagePayRequest;
import com.rome.hotel.common.annotation.Anonymous;
import com.rome.hotel.data.config.AlipayConfig;
import com.rome.hotel.data.domain.AliPay;
import com.rome.hotel.data.domain.HotelUser;
import com.rome.hotel.data.service.IHotelUserService;
import com.rome.hotel.data.utils.SnowFlake;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.math.BigDecimal;
import java.util.HashMap;
import java.util.Map;
@RestController
@Anonymous
@RequestMapping("/alipay")
public class AliPayController {


    /**
     * 配置支付宝沙箱支付的格式 和签证
     */
    private static final String GATEWAY_URL = "https://openapi-sandbox.dl.alipaydev.com/gateway.do";
    private static final String FORMAT = "JSON";
    private static final String CHARSET = "UTF-8";
    //签名方式
    private static final String SIGN_TYPE = "RSA2";

    private static  int idUser;

    @Resource
    private AlipayConfig aliPayConfig;

    @Autowired
    private IHotelUserService hotelUserService;

    /**
     * 支付的接口方法
     * @param aliPay
     * @param httpResponse
     * @throws Exception
     */
    @GetMapping("/pay") // &subject=xxx&traceNo=xxx&totalAmount=xxx
    public void pay(AliPay aliPay, int userId,HttpServletResponse httpResponse) throws Exception {
        //  http://localhost/dev-api/alipay/pay?subject=zhifumingcheng&totalAmount=10&alipayTraceNo=123124214&userId=12
        // 1. 创建Client，通用SDK提供的Client，负责调用支付宝的API
        AlipayClient alipayClient = new DefaultAlipayClient(GATEWAY_URL, aliPayConfig.getAppId(),
                aliPayConfig.getAppPrivateKey(), FORMAT, CHARSET, aliPayConfig.getAlipayPublicKey(), SIGN_TYPE);

        // 2. 创建 Request并设置Request参数
        AlipayTradePagePayRequest request = new AlipayTradePagePayRequest();  // 发送请求的 Request类
        request.setNotifyUrl(aliPayConfig.getNotifyUrl());
        request.setReturnUrl(aliPayConfig.getReturnUrl());
        JSONObject bizContent = new JSONObject();
        //生成订单号
        String orderId = new SnowFlake(0, 0).createOrderNo();
        aliPay.setTraceNo(orderId);
        bizContent.set("out_trade_no", aliPay.getTraceNo());  // 我们自己生成的订单编号
        bizContent.set("total_amount", aliPay.getTotalAmount()); // 订单的总金额
        bizContent.set("subject", aliPay.getSubject());   // 支付的名称
        bizContent.set("product_code", "FAST_INSTANT_TRADE_PAY");  // 固定配置
        System.out.println(aliPay);
        request.setBizContent(bizContent.toString());
//        962546132091666432
//        962546508522061824
        // 执行请求，拿到响应的结果，返回给浏览器
        String form = "";
        try {
            form = alipayClient.pageExecute(request).getBody(); // 调用SDK生成表单
        } catch (AlipayApiException e) {
            e.printStackTrace();
        }
        AliPayController.idUser = userId;
        httpResponse.setContentType("text/html;charset=" + CHARSET);
        httpResponse.getWriter().write(form);// 直接将完整的表单html输出到页面
        httpResponse.getWriter().flush();
        httpResponse.getWriter().close();
    }

    @PostMapping("/notify")  // 注意这里必须是POST接口
    public String payNotify(HttpServletRequest request) throws Exception {
        if (request.getParameter("trade_status").equals("TRADE_SUCCESS")) {
            System.out.println("=========支付宝异步回调========");

            Map<String, String> params = new HashMap<>();
            Map<String, String[]> requestParams = request.getParameterMap();
            for (String name : requestParams.keySet()) {
                params.put(name, request.getParameter(name));
                 System.out.println(name + " = " + request.getParameter(name));
            }

            // 查询订单 这里是支付的业务代码
            String userId = params.get("user");
            String sign = params.get("sign");
            String content = AlipaySignature.getSignCheckContentV1(params);
            boolean checkSignature = AlipaySignature.rsa256CheckContent(content, sign, aliPayConfig.getAlipayPublicKey(), "UTF-8"); // 验证签名
            // 支付宝验签
            if (checkSignature) {
                // 验签通过
                System.out.println("交易名称: " + params.get("subject"));
                System.out.println("交易状态: " + params.get("trade_status"));
                System.out.println("支付宝交易凭证号: " + params.get("trade_no"));
                System.out.println("商户订单号: " + params.get("out_trade_no"));
                System.out.println("交易金额: " + params.get("total_amount"));
                System.out.println("买家在支付宝唯一id: " + params.get("buyer_id"));
                System.out.println("买家付款时间: " + params.get("gmt_payment"));
                System.out.println("买家付款金额: " + params.get("buyer_pay_amount"));

                HotelUser hotelUserQuery = hotelUserService.selectHotelUserByUserId(new Long(AliPayController.idUser).longValue());
                BigDecimal money = new BigDecimal(params.get("total_amount"));
                System.out.println(hotelUserQuery.getBalance());
                BigDecimal balance = hotelUserQuery.getBalance();
                BigDecimal add = money.add(balance);
                hotelUserQuery.setBalance(add);
                hotelUserService.updateHotelUser(hotelUserQuery);
            }
        }
        return "success";
    }

//    @GetMapping("/return")
//    public Result returnPay(AliPay aliPay) throws AlipayApiException {
//        // 7天无理由退款
//
//        String now = DateUtil.now();
//
//        LambdaQueryWrapper<Orders> wrapper = new LambdaQueryWrapper<Orders>();
//        wrapper.eq(Orders::getAlipayNo, aliPay.getTraceNo());
//
//        //返回查询结果
//
//
//        Orders orders = ordersMapper.selectOne(wrapper);
//
//        if (orders != null) {
//            // hutool工具类，判断时间间隔
//
//            long between = DateUtil.between(
//                    DateUtil.parseDateTime(DateFormatUtil.DateToString(orders.getPayTime())),
//                    DateUtil.parseDateTime(now),
//                    DateUnit.DAY);
//            if (between > 7) {
//
//                return new Result(-1,"该订单已超过7天，不支持退款",null);
//            }
//        }
//
//
//        // 1. 创建Client，通用SDK提供的Client，负责调用支付宝的API
//        AlipayClient alipayClient = new DefaultAlipayClient(GATEWAY_URL,
//                aliPayConfig.getAppId(), aliPayConfig.getAppPrivateKey(), FORMAT, CHARSET,
//                aliPayConfig.getAlipayPublicKey(), SIGN_TYPE);
//        // 2. 创建 Request，设置参数
//        AlipayTradeRefundRequest request = new AlipayTradeRefundRequest();
//        JSONObject bizContent = new JSONObject();
//        bizContent.set("trade_no", aliPay.getAlipayTraceNo());  // 支付宝回调的订单流水号
//        bizContent.set("refund_amount", aliPay.getTotalAmount());  // 订单的总金额
//        bizContent.set("out_request_no", aliPay.getTraceNo());   //  我的订单编号
//
//        // 返回参数选项，按需传入
//        //JSONArray queryOptions = new JSONArray();
//        //queryOptions.add("refund_detail_item_list");
//        //bizContent.put("query_options", queryOptions);
//
//        request.setBizContent(bizContent.toString());
//
//        // 3. 执行请求
//        AlipayTradeRefundResponse response = alipayClient.execute(request);
//        if (response.isSuccess()) {  // 退款成功，isSuccess 为true
//            System.out.println("调用成功");
//
//            // 4. 更新数据库状态
//
//            UpdateWrapper<Orders> wrapper1=new UpdateWrapper<>();
//            //这表示给指定的一条数据修改，不然就给所有数据修改了
//            wrapper1.eq("id",orders.getId())
//                    .set("state","已退款");
//            ordersMapper.update(null, wrapper);
//
//            return new Result(200,"退款成功");
//        } else {   // 退款失败，isSuccess 为false
//            System.out.println(response.getBody());
//
//            return new Result(4041, response.getBody(),"退款失败");
//        }
//
//    }


}